1
|
Muniyandi A, Jensen NR, Devanathan N, Dimaras H, Corson TW. The Potential of Aqueous Humor Sampling in Diagnosis, Prognosis, and Treatment of Retinoblastoma. Invest Ophthalmol Vis Sci 2024; 65:18. [PMID: 38180770 PMCID: PMC10774694 DOI: 10.1167/iovs.65.1.18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2023] [Accepted: 11/27/2023] [Indexed: 01/06/2024] Open
Abstract
Retinoblastoma (RB) is a rare malignant tumor that arises in the developing retina in one or both eyes of children. Pathogenic variants of the RB1 tumor suppressor gene drive the majority of germline and sporadic RB tumors. Considering the risk of tumor spread, the biopsy of RB tumor tissue is contraindicated. Advancement of chemotherapy has led to preservation of more eye globes. However, this has reduced access to tumor material from enucleation specimens. Recently, liquid biopsy of aqueous humor (AH) has advanced the RB tumor- or eye-specific genetic analysis. In particular, nucleic acid analysis of AH demonstrates the genomic copy number profiles and RB1 pathogenic variants akin to that of enucleated RB eye tissue. This advance reduces the previous limitation that genetic assessment of the primary tumor could be done only after enucleation of the eye. Additionally, nucleic acid evaluation of AH allows the exploration of the genomic landscape of RB tumors at diagnosis and during and after treatment. This review explores how AH sampling and AH nucleic acid analysis in RB patients assist in diagnosis, prognosis, and comprehending the pathophysiology of RB, which will ultimately benefit individualized treatment decisions to carefully manage this ocular cancer in children.
Collapse
Affiliation(s)
- Anbukkarasi Muniyandi
- Department of Pharmacology & Toxicology, Indiana University School of Medicine, Indianapolis, Indiana, United States
- Eugene and Marilyn Glick Eye Institute, Department of Ophthalmology, Indiana University School of Medicine, Indianapolis, Indiana, United States
| | - Nathan R. Jensen
- Eugene and Marilyn Glick Eye Institute, Department of Ophthalmology, Indiana University School of Medicine, Indianapolis, Indiana, United States
- Department of Ophthalmology, University of Utah, Salt Lake City, Utah, United States
| | - Nirupama Devanathan
- Eugene and Marilyn Glick Eye Institute, Department of Ophthalmology, Indiana University School of Medicine, Indianapolis, Indiana, United States
| | - Helen Dimaras
- Department of Ophthalmology and Vision Sciences, Hospital for Sick Children, Toronto, Ontario, Canada
- Child Health Evaluative Sciences Program, Hospital for Sick Children, Toronto, Ontario, Canada
- Department of Ophthalmology and Vision Sciences, University of Toronto, Toronto, Ontario
- Division of Clinical Public Health, University of Toronto, Toronto, Ontario, Canada
| | - Timothy W. Corson
- Department of Pharmacology & Toxicology, Indiana University School of Medicine, Indianapolis, Indiana, United States
- Eugene and Marilyn Glick Eye Institute, Department of Ophthalmology, Indiana University School of Medicine, Indianapolis, Indiana, United States
- Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, Indiana, United States
- Indiana University Melvin and Bren Simon Comprehensive Cancer Center, Indianapolis, Indiana, United States
- Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, Ontario, Canada
| |
Collapse
|
2
|
Nembaware V, Bennett D, Chimusa ER, Chikowore T, Daodu R, Bitoungui VN, Williams SM, Fatumo S, Healy S, Seoighe C, Wonkam A. The African Society of Human Genetics successfully launches global data science workshops. Trends Genet 2023; 39:803-807. [PMID: 37714735 DOI: 10.1016/j.tig.2023.06.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 06/12/2023] [Accepted: 06/13/2023] [Indexed: 09/17/2023]
Abstract
To accelerate the impact of African genomics on human health, data science skills and awareness of Africa's rich genetic diversity must be strengthened globally. We describe the first African genomics data science workshop, implemented by the African Society of Human Genetics (AfSHG) and international partners, providing a framework for future workshops.
Collapse
Affiliation(s)
- Victoria Nembaware
- Division of Human Genetics, Department of Pathology, Faculty of Health Sciences, University of Cape Town, 1 Anzio Road, Observatory, 7925, Cape Town, South Africa.
| | - Declan Bennett
- School of Mathematical and Statistical Sciences, University of Galway, Galway H91 H3CY, Ireland
| | - Emile R Chimusa
- Department of Applied Sciences, Faculty of Health and Life Sciences, Northumbria University, Newcastle, UK
| | - Tinashe Chikowore
- Sydney Brenner Institute for Molecular Bioscience, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Richard Daodu
- Department of Biological Sciences, College of Natural Sciences, Redeemer's University, Ede, Osun State, Nigeria; African center of Excellence for Genomics of Infectious Diseases (ACEGID), Redeemer's University, Ede, Osun State, Nigeria
| | - Valential Ngo Bitoungui
- Department of Microbiology, Hematology and Immunology, Faculty of Medicine and Pharmaceutical Sciences, Université de Dschang, Dschang, Cameroon; National Public Health Laboratory, Yaoundé, Cameroon
| | - Scott M Williams
- Departments of Population and Quantitative Health Sciences, Cleveland Institute of Computational Biology, Case Western Reserve University, Cleveland, OH, USA
| | - Segun Fatumo
- The African Computational Genomics (TACG) Research Group, Medical Research Council/Uganda Virus Research Institute and London School of Hygiene & Tropical Medicine Uganda Research Unit, Entebbe, Uganda
| | - Sandra Healy
- School of Mathematical and Statistical Sciences, University of Galway, Galway H91 H3CY, Ireland
| | - Cathal Seoighe
- School of Mathematical and Statistical Sciences, University of Galway, Galway H91 H3CY, Ireland
| | - Ambroise Wonkam
- McKusick-Nathans Institute and Department of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| |
Collapse
|